Scaretiller, Bloodghast, Intruder Alarm, Claws of Gix, and Citanul Hierophants

Prerequisites

• Scaretiller on the battlefield
• Bloodghast on the battlefield
• Intruder Alarm on the battlefield
• Claws of Gix on the battlefield
• Citanul Hierophants on the battlefield
• Scaretiller does not have summoning sickness
• You control at least one creature except Bloodghast and Scaretiller that does not have summoning sickness
• You control at least one land
• available

Steps

1. Activate any creature you control except Bloodghast or Scaretiller by tapping it, adding
2. Activate Claws of Gix twice by paying and sacrificing Bloodghast and a land, causing you to gain two life
3. Activate Scaretiller by tapping it, adding
4. Scaretiller triggers, returning a land to the battlefield from your graveyard tapped
5. When the land enters the battlefield, Bloodghast triggers, returning itself to the battlefield from your graveyard
6. When Bloodghast enters the battlefield, Intruder Alarm triggers, untapping all creatures
7. Repeat

Results

• Infinite death triggers
• Infinite ETB
• Infinite landfall triggers
• Infinite lifegain
• Infinite lifegain triggers
• Infinite LTB
• Infinite mana creatures you control can produce
• Infinite sacrifice triggers
• Infinite untap of all creatures